<?php
namespace App\Http\Middleware;

use App\Api\Util\JRequest;
use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;

/**
 *
 * 打印接口日志
 *
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2016/11/8
 * Time: 10:27
 */
class RequestLogMiddleware
{

    static $LOG_ENABLE = false;

    public static $statusTexts = array(
        100 => 'Continue',
        101 => 'Switching Protocols',
        102 => 'Processing',            // RFC2518
        200 => 'OK',
        201 => 'Created',
        202 => 'Accepted',
        203 => 'Non-Authoritative Information',
        204 => 'No Content',
        205 => 'Reset Content',
        206 => 'Partial Content',
        207 => 'Multi-Status',          // RFC4918
        208 => 'Already Reported',      // RFC5842
        226 => 'IM Used',               // RFC3229
        300 => 'Multiple Choices',
        301 => 'Moved Permanently',
        302 => 'Found',
        303 => 'See Other',
        304 => 'Not Modified',
        305 => 'Use Proxy',
        307 => 'Temporary Redirect',
        308 => 'Permanent Redirect',    // RFC7238
        400 => 'Bad Request',
        401 => 'Unauthorized',
        402 => 'Payment Required',
        403 => 'Forbidden',
        404 => 'Not Found',
        405 => 'Method Not Allowed',
        406 => 'Not Acceptable',
        407 => 'Proxy Authentication Required',
        408 => 'Request Timeout',
        409 => 'Conflict',
        410 => 'Gone',
        411 => 'Length Required',
        412 => 'Precondition Failed',
        413 => 'Payload Too Large',
        414 => 'URI Too Long',
        415 => 'Unsupported Media Type',
        416 => 'Range Not Satisfiable',
        417 => 'Expectation Failed',
        418 => 'I\'m a teapot',                                               // RFC2324
        421 => 'Misdirected Request',                                         // RFC7540
        422 => 'Unprocessable Entity',                                        // RFC4918
        423 => 'Locked',                                                      // RFC4918
        424 => 'Failed Dependency',                                           // RFC4918
        425 => 'Reserved for WebDAV advanced collections expired proposal',   // RFC2817
        426 => 'Upgrade Required',                                            // RFC2817
        428 => 'Precondition Required',                                       // RFC6585
        429 => 'Too Many Requests',                                           // RFC6585
        431 => 'Request Header Fields Too Large',                             // RFC6585
        451 => 'Unavailable For Legal Reasons',                               // RFC7725
        500 => 'Internal Server Error',
        501 => 'Not Implemented',
        502 => 'Bad Gateway',
        503 => 'Service Unavailable',
        504 => 'Gateway Timeout',
        505 => 'HTTP Version Not Supported',
        506 => 'Variant Also Negotiates (Experimental)',                      // RFC2295
        507 => 'Insufficient Storage',                                        // RFC4918
        508 => 'Loop Detected',                                               // RFC5842
        510 => 'Not Extended',                                                // RFC2774
        511 => 'Network Authentication Required',                             // RFC6585
    );

    /**
     * @param $request
     * @param Closure $next
     * @return mixed
     * @name
     * @user IHammer
     */

 public function handle(Request $request, Closure $next)
    {
    	@env('ENABLE_REQUEST_LOG') == true && self::$LOG_ENABLE = true;
        // ---------log-------------
        if(self::$LOG_ENABLE) {
            $now = date("Y-m-d H:i:s");

            $method = $request -> getMethod();
            $uri = $request -> getRequestUri();
            $requestProtocol = @$_SERVER['SERVER_PROTOCOL'];

            $headers = $request -> headers;

            $headerStr = "";
            foreach($headers as $key => $value) {
                $headerStr .= $key . ": " . @$value[0] . "\n";
            }

            //$requestBody = @file_get_contents('php://input');
            $requestBody = json_encode($request->all());
            $msg = <<<EOT

-------------------------------------$now-------------------------------------
$method $uri $requestProtocol
{$headerStr}{$requestBody}

EOT;
        }

        // actual invoke
        $resp = $next($request);

        if(self::$LOG_ENABLE) {
            $responseProtocol = @$_SERVER['SERVER_PROTOCOL'];
            $statusCode = $resp -> getStatusCode();
            $statusText = "";
            if(isset(self::$statusTexts[$statusCode])) {
                $statusText = self::$statusTexts[$statusCode];
            }

            $responseHeaders = $resp -> headers;

            $headerStr = "";
            $contentType = NULL;
            $isHtml = false;
            foreach($responseHeaders as $key => $value) {
                $headerStr .= $key . ": " . @$value[0] . "\n";

                if(strcasecmp($key, 'content-type') === 0) {
                    $isHtml = stripos(@$value[0], 'text/html') !== false;
                }
            }

            $responseBody = "";

            if($resp != NULL) {
                $responseBody = $resp -> getContent();
            }

            $responseBody = mb_substr($responseBody, 0, 200);
            $user = '';
            if (defined('_USER_ID')) {
            	$nickname = defined("_USER_NICKNAME") ? constant('_USER_NICKNAME') : '';
            	$user = "user:[id:".constant('_USER_ID')." nickname:".$nickname."]";
            }

            $msg .= <<<EOT
$responseProtocol $statusCode $statusText
{$headerStr}{$user}

$responseBody
-------------------------------------$now-------------------------------------

EOT;
            Log::info($msg);

        }

        return $resp;
    }
}